Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
167 words
A surgical device for performing laser-assisted transmyocardial revascularization (TMR), the device particularly adapted for delivery of laser energy via a laser delivery means or manipulation of some other apparatus inside a body cavity or organ chamber where the depth of delivery of the laser energy is important to the procedure, the device comprising: an outer lumen, the outer lumen having a proximal end and a distal end, the outer lumen defining the central axis of the surgical device; a depth stop, the depth stop disposed at a point on the outer lumen adjacent the distal end of the outer lumen, the depth stop having a deploying means such that when the surgical device is placed adjacent tissue to be lased and the depth stop is deployed, the spatial reference of the position of the surgical device and the laser delivery means or other apparatus used in the surgical device is maintained in a predetermined position relative to the position of the distal end of the outer lumen.
Claim 2
Dependent Claim
25 words
The surgical device of claim 1 adapted for use as a catheter device, the catheter device useful for use in vascular channels and organ chambers.
Claim 3
Dependent Claim
30 words
The surgical device of claim 1 or claim 2 wherein the distal end of the outer lumen extends slightly past the depth stop thereby providing a distally extending end portion.
Claim 4
Dependent Claim
19 words
The surgical device of claim 3 wherein the distally extending end portion is tapered and able to penetrate tissue.
Claim 5
Dependent Claim
18 words
The surgical device of claim 3 or claim 4 wherein the distally extending end portion is mechanically sharpened.
Claim 6
Dependent Claim
16 words
The surgical device of any one of the preceding claims wherein the outer lumen is rigid.
Claim 7
Dependent Claim
17 words
The surgical device of any one of claims 1 to 5 wherein the outer lumen is flexible.
Claim 8
Dependent Claim
31 words
The surgical device of any one of the preceding claims wherein the depth stop comprises a balloon tip such that deployment of the depth stop consists of inflating the balloon tip.
Claim 9
Dependent Claim
46 words
The surgical device of any one of the preceding claims further comprising an inner lumen, the inner lumen disposed inside the outer lumen, the inner lumen having a proximal end and a distal end, the distal end connected to the distal end of the outer lumen.
Claim 10
Dependent Claim
45 words
The surgical device of claim 9 wherein the depth stop comprises a braided basket such that deployment of the depth stop consists of a slight retraction of the inner lumen within the outer lumen such that the depth stop is compressed axially and expanded radially,
Claim 11
Dependent Claim
28 words
The surgical device of claim 9 wherein the depth stop comprises a moly bolt tip such that deployment consists of causing the moly bolt to develop radial protrusions.
Claim 12
Dependent Claim
17 words
The surgical device of any one of the preceding claims further comprising a depth stop deploying mechanism.
Claim 13
Dependent Claim
46 words
The surgical device of claim 9 further comprising a depth stop deploying mechanism, the proximal ends of the outer and the inner lumens connected to the mechanism, the mechanism having a control means, the control means able to cause the depth stop mechanism to be deployed.
Claim 14
Dependent Claim
29 words
The surgical device of any one of the preceding claims wherein the depth stop further comprises a contacting surface essentially perpendicular to the central axis of the catheter device.
Claim 15
Dependent Claim
25 words
The surgical device of any one of the preceding claims further comprising a laser delivery means, the laser delivery means disposed inside the outer lumen.
Claim 16
Dependent Claim
68 words
The surgical device of any one of the preceding claims further comprising a distally extending tip portion extending axially past the depth stop, the distally extending tip portion having a plurality of openings such that a plurality of laser delivery means introduced into the outer lumen can be extended through the surgical device through the distal end of the outer lumen for the delivery of laser energy therefrom.
Claim 17
Dependent Claim
167 words
The surgical device of any one of the preceding claims further comprising: a plunger, the plunger extending parallel with the central axis of the surgical device and through the outer lumen, the plunger having a proximal end and a distal end; and mechanical linkage element, the mechanical linkage attached to the distal end of the outer lumen at a point of attachment, the mechanical linkage element having a cam surface, the mechanical linkage element further having a distally extending redirecting surface, such that when the plunger is moved axially through the outer lumen such that its distal end is brought to bear against the cam surface, the mechanical linkage element is rotated about the point of attachment between the mechanical linkage element and the distal end of the outer lumen, thereby redirecting a laser delivery means extending through the outer lumen of the surgical device to an angle with respect to the central axis of the surgical device for precise control of the delivery of laser energy.
Claim 18
Independent Claim
105 words
A device for revascularizing cardiac tissue comprising: a catheter having a proximal and a distal end and defining at least one inner lumen, the distal end having at least one exit aperture; a stabilizer device at the distal end for stabilizing the distal end on the cardiac tissue; a deployment mechanism at the proximal end of the catheter and operatively connected to the stabilizer device for expanding the stabilizer device to contact the cardiac tissue; and at least one fiber optic device insertable through the at least one inner lumen for delivering laser energy from the distal end of the catheter to the cardiac tissue.
Claim 19
Dependent Claim
27 words
The device of claim 18 wherein the stabiliser device does not extend substantially beyond an outer diameter of the catheter prior to expansion by the deployment mechanism.
Claim 20
Dependent Claim
44 words
The device of claim 18 or 19 wherein the distal end has two or more exit apertures and two or more fiber optic devices are inserted through the at least one inner lumen for deployment through the at least two or more exit apertures.